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ATE350574T1 - FUEL INJECTION VALVE OF AN INTERNAL COMBUSTION ENGINE - Google Patents

FUEL INJECTION VALVE OF AN INTERNAL COMBUSTION ENGINE

Info

Publication number
ATE350574T1
ATE350574T1 AT02022715T AT02022715T ATE350574T1 AT E350574 T1 ATE350574 T1 AT E350574T1 AT 02022715 T AT02022715 T AT 02022715T AT 02022715 T AT02022715 T AT 02022715T AT E350574 T1 ATE350574 T1 AT E350574T1
Authority
AT
Austria
Prior art keywords
fuel
shutter
combustion engine
internal combustion
fuel injection
Prior art date
Application number
AT02022715T
Other languages
German (de)
Inventor
Mario Ricco
Original Assignee
Fiat Ricerche
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fiat Ricerche filed Critical Fiat Ricerche
Application granted granted Critical
Publication of ATE350574T1 publication Critical patent/ATE350574T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0077—Valve seat details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/04—Fuel-injection apparatus having means for avoiding effect of cavitation, e.g. erosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A fuel injector (1) has a fuel inlet (5), and a metering valve (15) which is activated by an electromagnetic actuator (8) to open and close an injection nozzle; the metering valve (15) has a control chamber (16) communicating with the inlet (5) and defined by an end wall (20), in which is formed an outlet hole (22) closed by a shutter (28) moved along an axis (3) by the actuator (8); the end wall (20) and the shutter (28) are defined by respective parallel, facing surfaces (26, 33) which rest against each other to compress the film of fuel issuing from the hole (22) during closure by the shutter (28), and which have channeling (35) formed about the hole (22) to generate, in use, a counterpressure for the outflowing fuel. <IMAGE>
AT02022715T 2001-10-12 2002-10-10 FUEL INJECTION VALVE OF AN INTERNAL COMBUSTION ENGINE ATE350574T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2001TO000970A ITTO20010970A1 (en) 2001-10-12 2001-10-12 FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE.

Publications (1)

Publication Number Publication Date
ATE350574T1 true ATE350574T1 (en) 2007-01-15

Family

ID=11459256

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02022715T ATE350574T1 (en) 2001-10-12 2002-10-10 FUEL INJECTION VALVE OF AN INTERNAL COMBUSTION ENGINE

Country Status (6)

Country Link
US (2) US6793158B2 (en)
EP (1) EP1302654B1 (en)
AT (1) ATE350574T1 (en)
DE (1) DE60217252T2 (en)
ES (1) ES2276880T3 (en)
IT (1) ITTO20010970A1 (en)

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Publication number Priority date Publication date Assignee Title
JP4568598B2 (en) * 2004-12-21 2010-10-27 株式会社エヌ・ティ・ティ・ドコモ Control device and communication control method
US7762478B1 (en) * 2006-01-13 2010-07-27 Continental Automotive Systems Us, Inc. High speed gasoline unit fuel injector
DE102006034111A1 (en) * 2006-07-24 2008-01-31 Robert Bosch Gmbh Servo-valve-controlled injector for injecting fuel into cylinder combustion chambers of internal combustion engines; in particular common rail injector
DE102006050042A1 (en) * 2006-10-24 2008-04-30 Robert Bosch Gmbh Injector, particularly common rail injector, for fuel injection in combustion chambers of internal-combustion engines, has actuator arranged in injector body, which is arranged to operate valve case of control valve
DE102006050162A1 (en) * 2006-10-25 2008-04-30 Robert Bosch Gmbh Fuel injection valve device
US8715534B2 (en) * 2008-04-03 2014-05-06 E I Du Pont De Nemours And Company Method for producing composite member of metal member and resin member
ATE528499T1 (en) * 2008-11-19 2011-10-15 Delphi Tech Holding Sarl ANCHOR ARRANGEMENT
DE102008044096A1 (en) * 2008-11-27 2010-06-02 Robert Bosch Gmbh Method for producing throttle bores with a low caviation transfer point
DE602008005349D1 (en) 2008-12-29 2011-04-14 Fiat Ricerche Fuel injection system with high repeatability and stability for an internal combustion engine
JP5327117B2 (en) * 2010-03-24 2013-10-30 株式会社デンソー Fuel injection device
DE102010028844A1 (en) * 2010-05-11 2011-11-17 Robert Bosch Gmbh switching valve
WO2013045690A1 (en) * 2011-10-01 2013-04-04 Robert Bosch Gmbh An injection valve resistant to cavitation
JP5641035B2 (en) * 2012-11-13 2014-12-17 株式会社デンソー Fuel injection valve
DE102013212140A1 (en) * 2013-06-25 2015-01-08 Robert Bosch Gmbh control valve
CN103954624B (en) * 2014-04-22 2016-04-06 北京理工大学 Diesel fuel system high pressure fuel cavitation dynamic and visual observation procedure
US20160341166A1 (en) * 2015-05-20 2016-11-24 Caterpillar Inc. Common rail fuel injector
CN204877754U (en) * 2015-07-08 2015-12-16 罗伯特·博世有限公司 A control valve and fuel injector for fuel injector
DE102018113662A1 (en) 2018-06-08 2019-12-12 Liebherr-Components Deggendorf Gmbh Seat plate for an injector
CN111472907A (en) * 2020-03-20 2020-07-31 常熟理工学院 Single Column Control Valve for Injector
CN111472906A (en) * 2020-03-20 2020-07-31 常熟理工学院 fuel injection valve parts

Family Cites Families (22)

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CH297135A (en) * 1943-03-03 1954-03-15 Deckel Hans Ing Dr Injection nozzle for internal combustion engines.
US4342427A (en) * 1980-07-21 1982-08-03 General Motors Corporation Electromagnetic fuel injector
EP0296628B1 (en) * 1987-06-26 1993-02-24 Hitachi, Ltd. Electromagnetic fuel injection valve
DE3834447A1 (en) * 1988-10-10 1990-04-12 Mesenich Gerhard ELECTROMAGNETIC INJECTION VALVE AND METHOD FOR THE PRODUCTION THEREOF
IT1240173B (en) * 1990-04-06 1993-11-27 Weber Srl ELECTROMAGNETICALLY OPERATED FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
IT220660Z2 (en) * 1990-10-31 1993-10-08 Elasis Sistema Ricerca Fiat IMPROVEMENTS IN THE HIGH PRESSURE SHUTTER SYSTEM IN A PILOT VALVE OF AN ELECTROMAGNETIC INJECTOR FOR FUEL INJECTION SYSTEMS OF INTERNAL COMBUSTION ENGINES
DE59606610D1 (en) * 1995-06-02 2001-04-26 Ganser Hydromag Ag Zuerich Fuel injection valve for internal combustion engines
US5692723A (en) * 1995-06-06 1997-12-02 Sagem-Lucas, Inc. Electromagnetically actuated disc-type valve
JP3584554B2 (en) * 1995-07-26 2004-11-04 株式会社デンソー Accumulation type fuel injection device
IT1289795B1 (en) * 1996-12-23 1998-10-16 Elasis Sistema Ricerca Fiat IMPROVEMENTS TO AN ELECTROMAGNETICALLY OPERATED DOSING VALVE, WITH BALL SHUTTER, FOR A FUEL INJECTOR.
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IT1293432B1 (en) * 1997-07-11 1999-03-01 Elasis Sistema Ricerca Fiat FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES.
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Also Published As

Publication number Publication date
EP1302654A3 (en) 2003-11-05
ES2276880T3 (en) 2007-07-01
US7055766B2 (en) 2006-06-06
US20030111547A1 (en) 2003-06-19
EP1302654B1 (en) 2007-01-03
US20040217214A1 (en) 2004-11-04
EP1302654A2 (en) 2003-04-16
ITTO20010970A1 (en) 2003-04-12
US6793158B2 (en) 2004-09-21
DE60217252D1 (en) 2007-02-15
DE60217252T2 (en) 2007-05-10

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Legal Events

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